Package org.apache.hadoop.hdfs.server.diskbalancer.command

Class ReportCommand

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.hadoop.hdfs.server.diskbalancer.command.Command

org.apache.hadoop.hdfs.server.diskbalancer.command.ReportCommand

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.conf.Configurable

public class ReportCommand
extends Command

Executes the report command. This command will report volume information for a specific DataNode or top X DataNode(s) benefiting from running DiskBalancer. This is done by reading the cluster info, sorting the DiskbalancerNodes by their NodeDataDensity and printing out the info.

Constructor Summary

Constructors

Constructor	Description
ReportCommand(org.apache.hadoop.conf.Configuration conf)
ReportCommand(org.apache.hadoop.conf.Configuration conf, PrintStream ps)

Method Summary

Modifier and Type	Method	Description
void	execute(org.apache.commons.cli.CommandLine cmd)	Executes the Client Calls.
void	printHelp()	Prints the help message.

Methods inherited from class org.apache.hadoop.hdfs.server.diskbalancer.command.Command

addValidCommandParameters, close, create, getClusterURI, getDataNodeProxy, getDefaultTop, getNodeList, getNodes, getOutputPath, getTopNodes, open, parseTopNodes, populatePathNames, readClusterInfo, recordOutput, setCluster, setClusterURI, setNodesToProcess, setNodesToProcess, setOutputPath, setTopNodes, verifyCommandOptions

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ReportCommand

public ReportCommand(org.apache.hadoop.conf.Configuration conf)

ReportCommand

public ReportCommand(org.apache.hadoop.conf.Configuration conf,
 PrintStream ps)

Method Details

execute

public void execute(org.apache.commons.cli.CommandLine cmd)
             throws Exception

Description copied from class: Command

Executes the Client Calls.

Specified by:

execute in class Command

Parameters:

cmd - - CommandLine

Throws:

Exception

printHelp

public void printHelp()

Prints the help message.

Specified by:

printHelp in class Command